See also 20105, 20109, 20805, and 20809.
Receipt paper is jamming. (During loading) May be also failing to detect black mark. |
Clear any jam and reload paper.
Check connections to sensors in printer.
If there is a black mark on paper when unit is set to no black mark, change paper roll type to no black style.
Check DIP switch #6 setting.
ON = no black mark
OFF = black mark